Topway LMK070DDCFWD-NNA Manuel utilisateur
URL: www.topwaydisplay.com
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Document Name: LMK070DDCFWD-NNA Engineering Sample-Manual-Rev0.1
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LMK070DDCFWD-NNA
LCD Module User Manual
Prepared by:
Yu
Checked by: Approved by:
Date: 2020-05-18 Date: Date:
Rev.
Descriptions
Edit
Release Date
0.1 Preliminary release Yuxinlang 2018-12-28
0.2 Update section 9 Yu 2020-05-18
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 2 of 16
Table of Content
1. Applications ........................................................................................................................... 3
2. General Specification ............................................................................................................ 3
3. Block Diagram ........................................................................................................................ 3
4. Terminal Function .................................................................................................................. 4
4.1 TFT Input Terminal ................................................................................................................................................. 4
4.2 Touch Panel Terminal Functions............................................................................................................................ 5
5. Absolute Maximum Ratings .................................................................................................. 5
6. Electrical Characteristics ...................................................................................................... 5
6.1 DC Characteristics ................................................................................................................................................. 5
6.2 Current Consumption ............................................................................................................................................. 6
6.3 LED Backlight Circuit Characteristics ..................................................................................................................... 6
6.4 Touch Panel Characteristics .................................................................................................................................. 6
6.5 Power Sequence .................................................................................................................................................... 7
7. AC Characteristics ................................................................................................................. 8
7.1 Timing Characteristics ............................................................................................................................................ 8
7.2 Input Clock and Data Timing Diagram ................................................................................................................... 8
7.3 Timing .................................................................................................................................................................... 9
7.4 Data Input Format ................................................................................................................................................ 10
7.5 Optical Characteristics ......................................................................................................................................... 11
8. Assemble Precaution .......................................................................................................... 12
9. LCD Module Design and Handling Precautions ................................................................. 13
10. CTP Mounting Instructions ................................................................................................. 14
11. RTP Mounting Instructions ................................................................................................. 15
12. Warranty ............................................................................................................................... 16
13. Appendix <Inspection items and criteria for appearance defect> ................................... 16
13.1 Bright/Dark Dots: .................................................................................................................................................. 16
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
Page: 3 of 16
1. Applications
This Module is designed for portable DVD, GPS car TV & PMP(portable multimedia player)
application which require high quality flat panel displays. It is also a good substitute for many
outmoded CSTN module in the industrial application.
This product is composed of a TFT-LCD panel, driver ICs, FPC and LED backlight unit.
2. General Specification
Note:
*1. For saturated color display content (eg. pure-red, pure-green, pure-blue or pure-colors-combinations).
*2. For “color scales” display content.
*3. Color tone may slightly change by temperature and driving condition.
3. Block Diagram
Signal Interface : Digital 24-bits RGB
Display Technology : a-Si TFT active matrix
Display Mode : TN Type Full Color / Transmissive / Normal White
Screen Size(Diagonal) : 7.0”
Outline Dimension : 204.0 x 150.0 x 32.0 (mm)
(see attached drawing for details)
Active Area : 154.08 x 85.92 (mm)
Number of dots : 800 x 3 (RGB) x 480
Pixel Pitch : 0.0642 x 0.179 (mm)
Pixel Configuration : RGB Stripe
Backlight : LED
Touch Panel Surface Treatment: Anti-Glare
Touch Panel type: 4 wire Resistive
Viewing Direction : 6 o’clock(Gray scale Inversion) (*1)
12 o’clock (*2)
Operating Temperature : -20 ~ +70°C
Storage Temperature : -30 ~ +80°C
DVDD, GND, AVDD
7’’ TFT Panel
DE, HS, V
S,
DCLK
VGH, VGL
Timing Circuit
Source Driver
R0~R7, G0~G7, B0~B7
MODE
Touch Panel
XL, XR, YU, YD
Backlight Circuit
VLED+,VLED-
Gate Driver
Power Circuit
VCOM
DITHB
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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4. Terminal Function
4.1 TFT Input Terminal
Pin No.
Pin Name
I/O
Descriptions
1 VLED+ Power Positive Backlight Power Supply
2 V
LED+
3 VLED- Power Negative Backlight Power Supply
4 V
LED-
5 GND Power Power GND (0V)
6 V
COM
Input Common voltage
7 DV
DD
Power Power for Digital Circuit
8 MODE Input DE/SYNC mode select (*1)
9 DE Input Data input enable
10 VS Input Vertical Sync Input
11 HS Input Horizontal Sync Input
12 B7
Input 8bit Data for Blue : :
19 B0
20 G7
Input 8bit Data for Green : :
27 G0
28 R7
Input 8bit Data for Red : :
35 R0
36 GND Power Power GND (0V)
37 DCLK Input Sample clock(*2)
38 GND Power Power GND (0V)
39 L/R Input Left / right selection (*3)
40 U/D Input Up/down selection (*3)
41 VGH Power Gate ON Voltage
42 V
GL
Power Gate OFF Voltage
43 AV
DD
Power Power for Analog Circuit
44 RESET Input Global reset pin (*4)
45 NC - No connection
46 VCOM Input Common Voltage
47 DITHB Input Dithering function (*5)
48 GND Power Power GND (0V)
49 NC -
No connection
50 NC
Note:
* 1: DE/SYNC mode select. Normally pull high.
When select DE mode, MODE=”1”, VS and HS must pull high.
When select SYNC mode, MODE= “0”, DE must be grounded.
* 2: Data shall be latched at the falling edge of DCLK.
* 3: Selection of scanning mode
Setting of scan control input Scanning direction
U/D L/R
GND DV
DD
Up to down, left to right
DV
DD
GND Down to up, right to left
GND GND Up to down, right to left
DV
DD
DV
DD
Down to up, left to right
*4: Global reset pin. Active low to enter reset state. Suggest to connect with an RC reset circuit for stability. Normally pull high.
*5: Dithering function enable control, normally pull high.
When DITHB=”1”,Disable internal dithering function,
When DITHB=”0”,Enable internal dithering function,
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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4.2 Touch Panel Terminal Functions
Pin
No.
Pin
Name
I/O Descriptions
1 YL Passive Left Side sense Terminal
2 XD Passive Down Side sense Terminal
3 YR Passive Right Side sense Terminal
4 XU Passive Up Side sense Terminal
5. Absolute Maximum Ratings
Items
Symbol
Min.
Max.
Unit
Condition
Power voltage
DV
DD
-0.3 5.0 V
AVDD 6.5 13.5 V
V
GH
-0.3 40.0 V
VGL -20.0 0.3 V
V
GH -
V
GL
- 40.0 V
Operating Temperature TOP -20 70 C No Condensation
Storage Temperature TST -30 80 C No Condensation
Note:
*1. This rating applies to all parts of the module. And should not be exceeded.
*2. The operating temperature only guarantees operation of the circuit. The contrast, response speed,
and the other specification related to electro-optical display quality is determined at the room temperature, TOP=25.
*3. Ambient temperature when the backlight is lit (reference value)
*4. Any Stresses exceeding the Absolute Maximum Ratings may cause substantial damage to the device. Functional
operation of this device at other conditions beyond those listed in the specification is not implied and prolonged
exposure to extreme conditions may affect device reliability.
6. Electrical Characteristics
6.1 DC Characteristics
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
Power voltage
DV
DD
3.0 3.3 3.6 V *2
AVDD 10.2 10.4 10.6 V
V
GH
14.5 15.0 15.5 V
VGL -10.5 -10.0 -9.5 V
Input signal voltage V
COM
3.54 4.04 4.54 V
Input logic high voltage V
IH
0.7VDD
- DV
DD
V *3
Input logic low voltage VIL 0 - 0.3DVDD
V
Note:
*1.Be sure to apply DVDD and VGL to the LCD first, and then apply VGH.
*2: DVDD setting should match the signals output voltage (refer to Note 3) of customer’s system board.
*3: DCLK,HS,VS,RESET,U/D, L/R,DE,R0~R7,G0~G7,B0~B7,MODE,DITHB.
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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6.2 Current Consumption
Items
Symbol
Min.
Typ.
Max.
Unit
Remark
Current for Driver
I
GH
0.05 0.2 1.0 mA V
GH
= 15.0V
IGL 0.2 0.5 1.0 mA VGL = -10.0V
IDV
DD
1 4.0 10 mA DV
DD
=3.3V
IAVDD 5 20 50 mA AVDD=10.4V
6.3 LED Backlight Circuit Characteristics
Top=25℃
Items
Symbol
MIN.
TYP.
MAX.
Unit
Note
Forward Voltage VfBLA 9.0 9.6 10.5 V If=100mA
Forward Current If
BLA
- 200.0
- mA
Cautions:
Exceeding the recommended driving current could cause substantial damage to the backlight and shorten its lifetime.
6.4 Touch Panel Characteristics
TOP =25C
Items
Symbol
Min.
Typ.
Max.
Unit
Applicable Pin
Operating Force Fop 100 - 160 g -
Operating Voltage Vop - - 7 V -
Life Time TL - 1,000,000
- times -
X Resistance XR 400 - 1100 Ω
Y Resistance YR 100 - 500 Ω
Cautions:
Exceeding the recommended Condition could cause substantial damage to the touch panel and
shorten its life time.
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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6.5 Power Sequence
5.5.1 Power on:
DVDD →VGL→AVDD→VGH→Data→B/L
5.5.2 Power off:
B/L →Data→VGH→AVDD →VGL→DVDD
Note : Data include R0~R7,B0~B7,G0~G7,U/D,L/R,DCLK,HS,VS,DE.
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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7. AC Characteristics
7.1 Timing Characteristics
Item Symbol
MIN. TYP. MAX.
Unit Remark
HS setup time Thst 8 - - ns
HS hold time Thhd 8 - - ns
VS setup time Tvst 8 - - ns
VS hold time Tvhd 8 - - ns
Data setup time Tdsu 8 - - ns
Data hole time Tdhd 8 - - ns
DE setup time Tesu 8 - - ns
DVDD Power On Slew rate TPOR - - 20 ms From 0 to 90%
DV
DD
DCLK cycle time Tcph 20 - - ns
DCLK pulse duty Tcwh 40 50 60 %
Note: For the details of the timing, please see the Driver IC data sheet.
7.2 Input Clock and Data Timing Diagram
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LCD Module User Manual LMK070DDCFWD-NNA
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Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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7.3 Timing
Item Symbol
MIN. TYP. MAX.
Unit Remark
Horizontal Display Area thd - 800 - DCLK
DCLK Frequency fclk 26.4 33.3 46.8 MHz
One Horizontal Line th 862 1056 1200
DCLK
HS pulse width thpw 1 - 40 DCLK
HS Blanking thb 46 46 46 DCLK
HS Front Porch thfp 16 210 354 DCLK
Item Symbol
MIN. TYP. MAX.
Unit Remark
Vertical Display Area tvd - 480 - TH
VS period time tv 510 525 650 TH
VS pulse width tvpw 1 - 20 TH
VS Blanking tvb 23 23 23 TH
VS Front Porch tvfp 7 22 147 TH
TOPWAY
LCD Module User Manual LMK070DDCFWD-NNA
URL: www.topwaydisplay.com
Document Name: LMK070DDCFWD-NNA Manual-Rev0.2.DOC1
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7.4 Data Input Format
Figure 6-2-1 Horizontal input timing diagram.
Figure 6-2-2 Vertical input timing diagram.
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